---
title: FFERR_EFFECTPLAYING
framework: Force Feedback
role: symbol
role_heading: Global Variable
platforms: [Mac Catalyst 13.0+, macOS 10.2+]
path: forcefeedback/fferr_effectplaying
---

# FFERR_EFFECTPLAYING

## Declaration

```swift
var FFERR_EFFECTPLAYING: Int { get }
```

## Discussion

Discussion An attempt was made to modify parameters of an effect while it is playing. Not all hardware devices support altering the parameters of an effect while it is playing.

## See Also

### Constants

- [E_PENDING](forcefeedback/e_pending.md)
- [FF_DEGREES](forcefeedback/ff_degrees.md)
- [FF_DOWNLOADSKIPPED](forcefeedback/ff_downloadskipped.md)
- [FF_EFFECTRESTARTED](forcefeedback/ff_effectrestarted.md)
- [FF_FALSE](forcefeedback/ff_false.md)
- [FF_FFNOMINALMAX](forcefeedback/ff_ffnominalmax.md)
- [FF_INFINITE](forcefeedback/ff_infinite.md)
- [FF_OK](forcefeedback/ff_ok.md)
- [FF_SECONDS](forcefeedback/ff_seconds.md)
- [FF_TRUNCATED](forcefeedback/ff_truncated.md)
- [FF_TRUNCATEDANDRESTARTED](forcefeedback/ff_truncatedandrestarted.md)
- [FFEFF_OBJECTOFFSETS](forcefeedback/ffeff_objectoffsets.md)
- [FFERR_DEVICEFULL](forcefeedback/fferr_devicefull.md)
- [FFERR_DEVICEPAUSED](forcefeedback/fferr_devicepaused.md)
- [FFERR_DEVICERELEASED](forcefeedback/fferr_devicereleased.md)